Multiantenna Analog Network Coding for Multihop Wireless Networks
This paper proposes a two-phase minimum mean-square-error bidirectional amplify-and forward (MMSE-BAF) relaying protocol to allow two sources exchange independent messages via a relay node equipped with multiple antennas. MMSE-BAF performs a joint linear MMSE filtering of the received signal after t...
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| Format: | Article |
| Language: | English |
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Wiley
2010-01-01
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| Series: | International Journal of Digital Multimedia Broadcasting |
| Online Access: | http://dx.doi.org/10.1155/2010/368562 |
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| _version_ | 1832564346238009344 |
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| author | Ramesh Annavajjala Amine Maaref Jinyun Zhang |
| author_facet | Ramesh Annavajjala Amine Maaref Jinyun Zhang |
| author_sort | Ramesh Annavajjala |
| collection | DOAJ |
| description | This paper proposes a two-phase minimum mean-square-error bidirectional
amplify-and forward (MMSE-BAF) relaying protocol to allow two sources
exchange independent messages via a relay node equipped with multiple antennas.
MMSE-BAF performs a joint linear MMSE filtering of the received signal after
the multiple access phase before amplifying and forwarding the filtered signal
using a single transmit antenna, possibly through a specific antenna selection
procedure, during the broadcast phase. The proposed protocol extends upon the
so-called analog network coding schemes in the literature in that it inherently
exploits the multiple antennas at the relay station to reduce the noise enhancement
typical of an AF protocol, and can also compensate for link imbalances between
the relay and the sources and is agnostic to sources' modulation and coding
schemes. We derive the instantaneous signal-to-noise ratio expressions for the
received signal by the sources in the downlink and provide extensive link-level
simulations for the MMSE-BAF protocol subject to both frequency flat and
selective fading. Furthermore, we pinpoint the modifications to be incorporated
into the IEEE 802.16e orthogonal-frequency-division multiple access (OFDMA)
cellular standard (mobile WiMax) to enable support of multiantenna bidirectional
communications and show that MMSE-BAF is a viable solution within that
framework. |
| format | Article |
| id | doaj-art-8e83b9d637c641b59a450b3a224fc22c |
| institution | Kabale University |
| issn | 1687-7578 1687-7586 |
| language | English |
| publishDate | 2010-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Digital Multimedia Broadcasting |
| spelling | doaj-art-8e83b9d637c641b59a450b3a224fc22c2025-02-03T01:11:17ZengWileyInternational Journal of Digital Multimedia Broadcasting1687-75781687-75862010-01-01201010.1155/2010/368562368562Multiantenna Analog Network Coding for Multihop Wireless NetworksRamesh Annavajjala0Amine Maaref1Jinyun Zhang2Mitsubishi Electric Research Laboratories (MERL), 201 Broadway Cambridge, MA 02139, USAMitsubishi Electric Research Laboratories (MERL), 201 Broadway Cambridge, MA 02139, USAMitsubishi Electric Research Laboratories (MERL), 201 Broadway Cambridge, MA 02139, USAThis paper proposes a two-phase minimum mean-square-error bidirectional amplify-and forward (MMSE-BAF) relaying protocol to allow two sources exchange independent messages via a relay node equipped with multiple antennas. MMSE-BAF performs a joint linear MMSE filtering of the received signal after the multiple access phase before amplifying and forwarding the filtered signal using a single transmit antenna, possibly through a specific antenna selection procedure, during the broadcast phase. The proposed protocol extends upon the so-called analog network coding schemes in the literature in that it inherently exploits the multiple antennas at the relay station to reduce the noise enhancement typical of an AF protocol, and can also compensate for link imbalances between the relay and the sources and is agnostic to sources' modulation and coding schemes. We derive the instantaneous signal-to-noise ratio expressions for the received signal by the sources in the downlink and provide extensive link-level simulations for the MMSE-BAF protocol subject to both frequency flat and selective fading. Furthermore, we pinpoint the modifications to be incorporated into the IEEE 802.16e orthogonal-frequency-division multiple access (OFDMA) cellular standard (mobile WiMax) to enable support of multiantenna bidirectional communications and show that MMSE-BAF is a viable solution within that framework.http://dx.doi.org/10.1155/2010/368562 |
| spellingShingle | Ramesh Annavajjala Amine Maaref Jinyun Zhang Multiantenna Analog Network Coding for Multihop Wireless Networks International Journal of Digital Multimedia Broadcasting |
| title | Multiantenna Analog Network Coding for Multihop Wireless Networks |
| title_full | Multiantenna Analog Network Coding for Multihop Wireless Networks |
| title_fullStr | Multiantenna Analog Network Coding for Multihop Wireless Networks |
| title_full_unstemmed | Multiantenna Analog Network Coding for Multihop Wireless Networks |
| title_short | Multiantenna Analog Network Coding for Multihop Wireless Networks |
| title_sort | multiantenna analog network coding for multihop wireless networks |
| url | http://dx.doi.org/10.1155/2010/368562 |
| work_keys_str_mv | AT rameshannavajjala multiantennaanalognetworkcodingformultihopwirelessnetworks AT aminemaaref multiantennaanalognetworkcodingformultihopwirelessnetworks AT jinyunzhang multiantennaanalognetworkcodingformultihopwirelessnetworks |